My office experience here was terrible: * Called office for…read more2 weeks to make an appt as a referral from ENT Dr. They finally answered and simply made up a lame excuse about having system issues for past 2 days. *Went in for appt only to find out it had been canceled by audiologist. No call, no message, no sincere apology.

I don't recommend going to Sonus. I've been wearing hearing aids since 1980. I don't need BS. I'm…read morein the market to get aids. Period. Don't give me BS about locations closer to my residence. It does NOT fucking work for me to go to a location that's open 1 day a week. I had the resources to get new aids. The office did what they could to turn me off and lose what little trust I had. Fine. I will go elsewhere and not bother doing business with Sonus ever again.

"He is an amazing doctor. He truly cares about his patients and their health. I appreciate his…read morekindness, professionalism, and the time he takes to listen and help."

Rude front office . Forget appointment time. They bite off more than they can chew…read more Went early filled out paperwork way before appointment time, waited 30 minutes still couldn't see Dr. There were 2 people ahead of me. Small waiting room. Had to wait in the hallway. That's what these Dr's do. Just bring them in and make them wait . They ain't charging my insurance company for this BS.

I went here for ringing my ears unfortunately they couldn't take care of it. However, the staff and…read moredoctors were very attentive and I would recommend them.

Thank God for this place! I woke up one morning and could not hear out of my left ear. Felt like I…read morehad 8,000 cotton balls in there plus annoying ringing. I called them and they were able to get me in the same day. The NP suctioned both ears out (I had massive wax build up) and I was finally able to hear again. I wanted to her! Thank you again so much for getting me in so quickly. Urgent care refused to flush my ears out because they said I had an ear infection...turns out, no infection...just wax build up. If you can get in here instead of going to urgent care...do it.

Zero stars for rude staff, inadequate billing department makes too many errors so insurance won't…read morepay but...Regarding Dr James Sun... I had a boney mass removed from my sinuses that was identified to have mold. Tests showed it was systemic. He refuses lab testing to identify species for treatment AND cancelled my postop. What surgeon does that! His behavior is negligent, cowardly and unprofessional. He should have his medical license ripped from his weak hands. He works in Placentia and Corona, at Riverside Medical Clinic, who is also liable for his negligent behavior. This goes strictly AGAINST the Hippocratic oath.

Dr. James Sun is located in the Riverside Medical Clinic at the Retreat off of Weirick Rd in…read moreCorona. My husband had a minor problem with his nose and we self referred to Dr. Sun. We couldn't be happier with the quality of care from Dr. Sun, as well as his nursing staff. The wait was minimal and Dr. Sun came into the room, exuding happiness, welcoming us. He cauterized my husband's nostril and was very efficient and reassuring about the outcome. It was a very caring and pleasant experience all around. I highly recommended Dr. Sun for your ENT needs.

My son had tubes put in his ears by Dr. Kalkanis, no issues whatsoever with this doctor. It's been…read moreabout 4-5 years since the procedure and my son started having some issues again. Here's where the one star comes into play. I waited on hold for at least 45 minutes and finally entered my phone number in to be called back...never received a call. So I waited a few days and called again...waited on perpetual hold and then entered my phone number again to be called back...no call back yet again!! How in the heck are you supposed to make an appointment if you can't even get a live body on the phone to talk to. Because of this the office gets a one star, and I'm super upset that I will need to find a different ENT to go to since we can't get in to Dr. Kalkanis. Horrible patient service

This doctor and the front desk staff were EXTEMELY unprofessional and disrespectful. Giving wrong…read moreappointment dates, forgetting mentioning the most important things in appointment emails resulting cancelation of long-waited appointments, no calling back after leaving voice mails, never easy to talk to a front desk person, long wait time for any appointment (check or surgery). I would never go to this doctor. NEGATIVE score will be mine to give them.

Do not come here. Doctor was with me for less than five minutes and after I told him I twisted…read moreduring showering and felt back pain, he stated I needed x-rays, MRI and hip replacement! I'm 57 years old and did not suffer any injury or fall for my compliant of back pain. I needed a note for work and went there because they were on my health insurance authorized provider list. Also, I went back the following day to collect my receipt because I did not receive it on date of service. I later noticed receipt indicated I paid $35., but my bank showed a $36. draft. I called their office this morning and was told, "I told you about the fee" when in fact they did not. I had cash on me on day of visit so I would have just paid cash. She also said "there is a small sign" at front desk, which obviously should be much larger since I did not see it. The $1. fee is not the point, the point here is the fee was not disclosed. Good luck and God bless.

I've been coming to dr. Chidi for years now. He explains the situation in the level that you can…read moreunderstand and figure out the treatment together. Also I can see him when I need to. I don't have to wait for days for an appointment. Nurses in the front office are especially nice & friendly. My only issue is with their billing. The billing company that use is impossible to deal with. Never return your calls and one doesn't know what the other did. They send claims to insurance too late or not at all ... and are too happy to send it to collection agency.